Shaun K. Johnston
Pd₃Sn nanoparticles on TiO₂ and ZnO supports as catalysts for semi-hydrogenation : synthesis and catalytic performance
Johnston, Shaun K.; Cherkasov, Nikolay; Perez-Barrado, Elena; Aho, Atte; Murzin, Dmitry Y.; Ibhadon, Alex O.; Francesconi, M. Grazia
Authors
Nikolay Cherkasov
Elena Perez-Barrado
Atte Aho
Dmitry Y. Murzin
Dr Alex Ibhadon A.O.Ibhadon@hull.ac.uk
Reader, Catalysis and Reactor Engineering for Energy Generation and Chemical Synthesis
Dr Grazia Francesconi M.G.Francesconi@hull.ac.uk
Senior Lecturer
Abstract
The two catalysts Pd₃Sn/TiO₂and Pd3Sn/ZnO were prepared via a one-pot procedure based on the “polyol method” with the addition of a capping agent (polyvinylpyrrolidone) to control the particle size distribution. The same procedure was used to prepare Pd/TiO2 and Pd/ZnO for comparison. All four catalysts showed high activity and selectivity for the selective hydrogenation of 2-methyl-3-butyn-2-ol (MBY) to 2-methyl-3-buten-2-ol (MBE) in the liquid phase under identical conditions. However, Pd₃Sn/TiO₂and Pd₃Sn/ZnO show selectivities to alkene significantly higher than that of the Pd catalysts. Specifically, the selectivity increases from 96.4% to 97.4% on TiO₂support, and 96.2% to 97.6% on ZnO support, at 90% conversion. Transition electron microscopy shows nanoparticles evenly dispersed on the support, with mean particle sizes as low as 4.1 (±0.8) nm when Sn is incorporated into the catalyst. Unsupported Pd3Sn was prepared using the same method and characterised by powder X-Ray diffraction followed by the Rietveld refinement. Pd3Sn was found to be single-phase and isostructural to Pd metal with a face centred cubic unit cell.
Citation
Johnston, S. K., Cherkasov, N., Perez-Barrado, E., Aho, A., Murzin, D. Y., Ibhadon, A. O., & Francesconi, M. G. (2017). Pd₃Sn nanoparticles on TiO₂ and ZnO supports as catalysts for semi-hydrogenation : synthesis and catalytic performance. Applied catalysis. A, General, 544, 40-45. https://doi.org/10.1016/j.apcata.2017.07.005
Acceptance Date | Jul 5, 2017 |
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Online Publication Date | Jul 8, 2017 |
Publication Date | Aug 25, 2017 |
Deposit Date | Jul 12, 2017 |
Publicly Available Date | Jul 12, 2017 |
Journal | Applied catalysis. A, General |
Print ISSN | 0926-860X |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 544 |
Pages | 40-45 |
DOI | https://doi.org/10.1016/j.apcata.2017.07.005 |
Keywords | Alkyne; Alkene; Bimetallic; Catalysis; Palladium; Selective hydrogenation; Acetylene |
Public URL | https://hull-repository.worktribe.com/output/453539 |
Publisher URL | http://www.sciencedirect.com/science/article/pii/S0926860X17303058 |
Additional Information | This is the accepted manuscript of an article published in pplied catalysis. A, General, 2017. The version of record is available at the DOI link in this record. |
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Copyright Statement
©2018, Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
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